Improvement of Late Blight Management in Organic Potato Production Systems in Europe: Field Tests with More Resistant Potato Varieties and Copper Based Fungicides

2006 ◽  
Vol 23 (4) ◽  
pp. 393-412 ◽  
Author(s):  
B. Speiser ◽  
L. Tamm ◽  
T. Amsler ◽  
J. Lambion ◽  
C. Bertrand ◽  
...  
Keyword(s):  
Late Blight ◽  
Production Systems ◽  
Field Tests ◽  
Potato Production ◽  
Potato Varieties ◽  
Organic Potato ◽  
Late Blight Management

scholarly journals Cisgenesis Does Not Solve the Late Blight Problem of Organic Potato Production: Alternative Breeding Strategies

2008 ◽  
Vol 51 (1) ◽  
pp. 89-99 ◽  
Author(s):  
E. T. Lammerts van Bueren ◽  
M. Tiemens-Hulscher ◽  
P. C. Struik
Keyword(s):  
Late Blight ◽  
Potato Production ◽  
Breeding Strategies ◽  
Organic Potato

scholarly journals Research of midseason potato varieties suitable for organic growing

2019 ◽  
Vol 7 (1-2) ◽  
pp. 61-66
Author(s):  
Orsolya Papp ◽  
Timea Jung ◽  
Dora Drexler
Keyword(s):  
Research Program ◽  
Insect Pests ◽  
Seed Tuber ◽  
Potato Production ◽  
Organic Production ◽  
Potato Varieties ◽  
Research Results ◽  
Organic Potato ◽  
The Right ◽  
On Farm

An essential issue in organic potato production is choosing the right varieties, because varieties grown under conventional conditions may not always be suitable for organic production. The choice of variety was based solely on farmers’ experience, as research results were not available. Because of the lack of reliable information, ÖMKi initiated an on-farm research program for organic potato production in 2012. 13 mid-season potato varieties with certain degree of resistance to relevant diseases or abiotic stresses were tested on 22 organic farms (2012-2015) in close cooperation with the growers. Quantitative and qualitative parameters were assessed at harvest. The average yield was 2.19-3.45 kg/m² (21-34 t/ha). Among seven qualitative parameters the most relevant quality problems were: Streptomyces and Rhizoctonia infection and damage by insect pests. No significant differences could be shown among the varieties regarding the assessed parameters, but disease resistance often differed compared to the descriptions provided by the seed tuber distributors. Besides summarizing and sharing research results, regular meetings and field trips were arranged for farmers. As an indirect result of the on-farm research program the communication was highly improved among the participants and a well-working organic potato workgroup was formed.

scholarly journals Breeding Late Blight Resistant Potatoes for Organic Farming—a Collaborative Model of Participatory Plant Breeding: the Bioimpuls Project

2021 ◽  
Author(s):  
P. Keijzer ◽  
E. T. Lammerts van Bueren ◽  
C. J. M. Engelen ◽  
R. C. B. Hutten
Keyword(s):  
Late Blight ◽  
Resistance Genes ◽  
Potato Breeding ◽  
Late Blight Resistance ◽  
Potato Production ◽  
Weed Suppression ◽  
Blight Resistance ◽  
Participatory Plant Breeding ◽  
True Seed ◽  
Organic Potato

AbstractIn organic potato production, the need for varieties with durable late blight resistance developed through classical breeding programmes is urgent. Besides late blight resistance, other variety characteristics needed in organic potato production are early canopy closure for weed suppression and good tuber dormancy to eliminate the need for (chemical) sprouting inhibition during storage, amongst others. This paper is a unique example of collaboration between researchers, farmers and professional breeders of both large, medium and small breeding companies. The aim of the resulting breeding project, Bioimpuls, was to provide a substantial impulse to both the organic and conventional potato breeding sector by enlarging the access to various sources of late blight resistance. The Bioimpuls activities include providing true seed populations for variety selection with five available sources of R-genes against Phytophthora infestans, early and advanced introgression breeding with six new R-genes, and education and communication. The results achieved over the 11-year period (2009–2019) are analysed. Many true seed populations containing multiple resistance genes are produced and selected, and a constant flow of breeding clones is entering the evaluation and positioning trials of companies. However, it will still take a considerable amount of time before varieties with stacked resistance genes will replace the new resistant single gene varieties entering the market in the next few years. Five out of six new sources of R-genes need more years of backcrossing before they are ready for commercial use. Bioimpuls successfully introduced a training course for farmer breeders, and published a manual for potato breeding.

scholarly journals Uji Adaptasi Klon-Klon Kentang Transgenik Tahan Hawar Daun Pada Agroekosistem Jawa Barat dan Jawa Tengah [Adaptation Test of Transgenic Potato Resistance to Late Blight Under Agro Ecosystem of West and Central Java]

2019 ◽  
Vol 28 (2) ◽  
pp. 175
Author(s):  
NFN Kusmana ◽  
Alberta Dinar Ambarwati
Keyword(s):  
Late Blight ◽  
Block Design ◽  
Transgenic Potato ◽  
Potato Production ◽  
Test Site ◽  
Field Trials ◽  
West Java ◽  
Potato Varieties ◽  
Central Java ◽  
Adaptation Test

<p>Uji adaptasi merupakan salah satu syarat utama untuk pendaftaran varietas tanaman hortikultura. Salah satu masalah utama pada produksi tanaman kentang adalah adanya serangan penyakit hawar daun yang disebabkan oleh cendawan Phytophthora infestans. Melalui usaha perakitan varietas tanaman telah dihasilkan beberapa calon varietas kentang tahan terhadap penyakit hawar daun. Tanaman kentang tahan hawar daun dihasilkan melalui persilangan antara varietas kentang Granola dengan kentang transgenik Katahdin SP951 serta varietas Atlantic dengan Katahdin SP951. Uji adaptasi dilakukan di Lapangan Uji Terbatas sentra produksi kentang di Jawa Barat (Kab. Bandung dan Kab. Garut) dan di Jawa Tengah (Kab. Banjarnegara). Waktu pengujian mulai bulan Oktober 2013 sampai dengan Februari 2014. Penelitian disusun dengan menggunakan rancangan kelompok lengkap teracak (RKLT) dengan tiga ulangan. Untuk menguji stabilitas hasil menggunakan perangkat software komputer MSTATC. Untuk uji resistensi menggunakan isolat P. infestans dari masing-masing lokasi uji. Inokulasi dilakukan di rumah kaca pada saat tanaman berumur 30 hari setelah tanam dilakukan sebanyak lima kali dengan interval waktu 4 hari, yaitu pada umur 30, 34, 38, 42, dan 46 hari. Hasil pengujian didapatkan genotipe yang stabil, yaitu Klon 20, 27, 62, dan 65, serta varietas pembanding Atlantic, Granola, Katahdin, dan Katahdin SP 951. Klon 66 dan 69 merupakan klon yang tidak stabil. Klon 27, 62, 65, 66, dan 69 merupakan klon yang resisten terhadap serangan hawar daun. Klon 20 memiliki ketahanan yang moderat resisten terhadap serangan hawar daun sementara Granola dan Atlantic merupakan genotipe yang peka terhadap hawar daun. Hasil penelitian dapat dijadikan sebagai rekomendasi untuk pengusulan pendaftaran calon varietas kentang yang memiliki adaptasi baik di Jawa Barat dan Jawa Tengah serta tahan terhadap penyakit hawar daun.</p><p><strong>Keywords</strong></p><p><em>Solanum tuberosum</em> L; Adaptasi; Resistensi; Hawar daun</p><p><strong>Abstract</strong></p><p>Adaptation test is one of the main requirements for variety registration. One of major problem of potato production is potato late blight disease caused by P. infestans. Through the breeding program has produced several candidates potato varieties resistance to late blight. Late blight resistant potato was obtained through crosses between Indonesian local potato variety of Granola and Atlantic with transgenic variety of Katahdin SP951. Adaptation test was conducted at confined field trials in potato production area in West Java (District of Bandung and Garut) and Central Java (Banjarnegara). The experiment was conducted from October 2013 to February 2014. The experimental design was Randomized Complete Block Design with three replications. The software of MSTATC was used for testing the stability of genotypes. To test of resistance to P.infestans, it was used P. infestans isolates that collected from each test site. Inoculation was conducted in a greenhouse at the plant was 30 days old after planting and performed five times inoculation with intervals of 4 days on the age (30, 34, 38, 42, and 46 days). The result showed that the stable genotypes were obtained from clone 20, 27, 62, and 65, as well as the varieties Atlantic, Granola, Katahdin, and Katahdin SP951. Whereas, clone 66 and 69, were unstable clone. Genotypes resistance to late blight were clone 27, 62, 65, 66, 69 and Katahdin SP951. Clone 20 has a moderate resistant to late blight, while Granola and Atlantic are genotypes that are susceptable to late blight. The results of the study can be used as a recommendation for the nomination of candidates potato varieties that have good adaptation in West Java and Central Java as well as resistant to late blight.</p>

scholarly journals Influence of the Potato Production System in the Soil Suppressiveness to Bacterial Wilt

2019 ◽  
pp. 1-11
Author(s):  
Juliana Zucolotto ◽  
Carlos F. Ragassi ◽  
Carlos A. Lopes ◽  
Fernando A. Piotto ◽  
Paulo C. T. De Melo
Keyword(s):  
Bacterial Wilt ◽  
Production System ◽  
Production Systems ◽  
Potato Crop ◽  
Potato Production ◽  
Additional Treatment ◽  
Infested Soil ◽  
Soil Suppressiveness ◽  
Organic Potato ◽  
Conventional Production

The potato crop is highly affected by soil-borne diseases motivating its continuous migration to non-cultivated areas. Bacterial wilt caused by Ralstonia spp. is one of the main diseases affecting the potato crop in Brazil, since the conventional production system, used throughout the country, promotes an ideal environment for proliferation of members of this pathogen complex. Studying alternative potato production systems aiming to improve the soil biological properties is necessary in order to avoid the continuous migration of the potato crop to new areas. The objective of this work was to evaluate different potato production systems, namely, the Paces an alternative potato production system and the organic potato production systems in contrast to the conventional production system, a soil from the Paces system sterilized through autoclaving and an undisturbed Atlantic rainforest soil regarding the soil suppressiveness to bacterial wilt caused by R. solanacearum. The experimental design was randomized blocks with three replications, arranged in a 4 x 4 + 1 factorial scheme, the main factor being the production system and the secondary factor corresponding to the doses of soil contaminated with R. solanacearum added to each treatment (0, 25, 50 and 75%). The additional treatment corresponded to the soil of the conventional system with high incidence of R. solanacearum. The soil suppressiveness to bacterial wilt is a biological process inhibited by autoclaving. The Paces and the organic potato production systems have a significant potential to suppress R. solanacearum in infested soil.

Optimization of Late Blight and Bacterial Wilt Management in Potato Production Systems in the Highland Tropics of Africa

2012 ◽  
pp. 509-531 ◽  
Author(s):  
Modesto Olanya ◽  
Richard Nyankanga ◽  
Peter Ojiambo ◽  
Berga Lemaga ◽  
Rogers Kakuhenzire ◽  
...  
Keyword(s):  
Late Blight ◽  
Bacterial Wilt ◽  
Production Systems ◽  
Potato Production

scholarly journals Life Cycle Assessment to Highlight the Environmental Burdens of Early Potato Production

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 879
Author(s):  
Giuseppe Timpanaro ◽  
Ferdinando Branca ◽  
Mariarita Cammarata ◽  
Giacomo Falcone ◽  
Alessandro Scuderi
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Organic Farming ◽  
Ecological Model ◽  
Production Systems ◽  
Cost Effective ◽  
Potato Production ◽  
Conventional Agriculture ◽  
Production Models ◽  
Real Performance

Climate change, food security, and the protection of the planet’s resources require the adoption of sustainable production models. Achieving sustainable development in the agri-food sector enables the creation of new opportunities for operators, guiding farmers towards more environmentally friendly practices and offering cost-effective results. Organic farming paradigms are promoted by the transformation of some harmful practices of conventional agriculture, such as the wide use of chemical products of synthesis, the deep workings that favor the erosive processes, the excessive use of nitrogenous fertilizers. There are still gaps in the knowledge of the real performance of some products that strongly support the local economic system of Sicily (Italy). The research aims to highlight the differences in environmental impact caused by the cultivation of organic early potatoes compared to the conventional regime and the same per kg of product obtained. To this end, the widely used methodology for comparing the environmental impacts of agricultural production systems is the Life Cycle Assessment, which allows us to highlight the phases in which environmental criticalities are most concentrated. An interesting agroecological picture of knowledge emerges, since organic farming is by definition an ecological model that supports the principles of the Green Deal, it often requires interventions to improve the yields obtained in order to achieve a positive result both in terms of cultivated surface and kg of product obtained.

Sign in / Sign up

Export Citation Format

Share Document